Nissan Maxima. Manual - part 1074

 

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Nissan Maxima. Manual - part 1074

 

 

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

SEC-121

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

1

(R)

Ground Battery power supply

Input

Ignition switch OFF

Battery voltage

2

(L)

Ground Battery power supply

Input

Ignition switch OFF

Battery voltage

4

(LG)

Ground Front wiper LO

Output

Ignition 
switch ON

Front wiper switch OFF

0 V

Front wiper switch LO

Battery voltage

5

(Y)

Ground Front wiper HI

Output

Ignition 
switch ON

Front wiper switch OFF

0 V

Front wiper switch HI

Battery voltage

6

(L)

Ground

Daytime light relay power 
supply (Canada models 
only)

Output

Ignition switch OFF

Battery voltage

7

(GR)

Ground

Tail, license plate lamps & 
interior lamps

Output

Ignition 
switch ON

Lighting switch OFF

0 V

Lighting switch 1ST

Battery voltage

10

(BR)

Ground ECM relay power supply

Output

Ignition switch OFF
(For a few seconds after turning ignition 
switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(More than a few seconds after turn-
ing ignition switch OFF)

Battery voltage

12

(B)

Ground Ground

Ignition switch ON

0 V

13

(SB)

Ground Fuel pump power supply 

Output

Approximately 1 second or more after 
turning the ignition switch ON

0 V

• Approximately 1 second after turning 

the ignition switch ON

• Engine running

Battery voltage

15

(W)

Ground

Ignition relay-1 power sup-
ply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

16

(R)

Ground Front wiper auto stop

Input

Ignition 
switch ON

Front wiper stop position

0 V

Any position other than 
front wiper stop position

Battery voltage

19

(Y)

Ground

Ignition relay-1 power sup-
ply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

20

(L)

Ground Ambient sensor ground

Ignition switch ON

0V

21

(LG)

Ground Ambient sensor

Ignition switch ON

5V

22

(SB)

Ground

Refrigerant pressure sen-
sor ground

Ignition switch ON

0V

23

(GR)

Ground

Refrigerant pressure sen-
sor

• Ignition switch ON (READY)
• Both A/C switch and blower motor 

switch ON (electric compressor oper-
ates)

1.0 - 4.0V

24

(G)

Ground

Refrigerant pressure sen-
sor power supply

Ignition switch ON

5V

25

(GR)

Ground

Ignition relay-1 power sup-
ply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

SEC-122

< ECU DIAGNOSIS INFORMATION >

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

27

(W)

Ground Ignition relay monitor

Input

Ignition switch OFF or ACC

Battery voltage

Ignition switch ON

0 V

28

(SB)

Ground

Push-button ignition 
switch

Input

Press the push-button ignition switch

0 V

Release the push-button ignition switch Battery voltage

30

(BR)

Ground Starter relay control 

Input

CVT selector lever in any position other 
than P or N (ignition switch ON)

0 V

CVT selector lever P or N (ignition 
switch ON)

Battery voltage

34

(O)

Ground Cooling fan relay-3 control

Input

Ignition switch OFF or ACC

0 V

Ignition switch ON

0.7 V

35

(P)

Ground Cooling fan motor control

Output

Ignition switch OFF or ACC

0 V

Ignition switch ON

0.7 V

36

(G)

Ground Battery power supply

Input

Ignition switch OFF

Battery voltage

38

(GR)

Ground Cooling fan motor control

Output

Ignition switch OFF or ACC

0 V

Ignition switch ON

0.7 V

39

(P)

CAN  -  L

Input/ 

Output

40

(L)

CAN  -  H

Input/ 

Output

41

(B)

Ground Ground

Ignition switch ON

0 V

42

(SB)

Ground Cooling fan relay-2 control

Input

Ignition switch OFF or ACC

0 V

Ignition switch ON

0.7 V

43

(Y)

Ground

CVT shift selector
(Detention switch)

Input

Ignition 
switch ON

Press the CVT selector 
button (CVT selector lever 
P)

Battery voltage

• CVT selector lever in 

any position other than 
P

• Release the CVT selec-

tor button (CVT selector 
lever P)

0 V

44

(W)

Ground Horn relay control

Input

The horn is deactivated

Battery voltage

The horn is activated

0 V

45

(GR)

Ground Anti theft horn relay control

Input

The horn is deactivated

Battery voltage

The horn is activated

0 V

46

(BR)

Ground Starter relay control 

Input

CVT selector lever in any position other 
than P or N (ignition switch ON)

0 V

CVT selector lever P or N (ignition 
switch ON)

Battery voltage

48

(W)

Ground A/C relay power supply

Output

Engine 
running

A/C switch OFF

0 V

A/C switch ON
(A/C compressor is oper-
ating)

Battery voltage

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

SEC-123

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

49

(R/B)

Ground ECM relay power supply

Output

Ignition switch OFF
(For a few seconds after turning ignition 
switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(More than a few seconds after turn-
ing ignition switch OFF)

Battery voltage

51

(LG)

Ground Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

52

(Y/G)

Ground Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

53

(R/W)

Ground ECM relay power supply

Output

Ignition switch OFF
(For a few seconds after turning ignition 
switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(More than a few seconds after turn-
ing ignition switch OFF)

Battery voltage

54

(G/W)

Ground

Throttle control motor re-
lay power supply

Output

Ignition switch OFF
(For a few seconds after turning ignition 
switch OFF)

0 V

• Ignition switch ON
• Ignition switch OFF

(More than a few seconds after turn-
ing ignition switch OFF)

Battery voltage

55

(W/L)

Ground ECM power supply

Output

Ignition switch OFF

Battery voltage

56

(R/Y)

Ground Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

57

(O)

Ground Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

58

(Y)

Ground Ignition relay power supply

Output

Ignition switch OFF

0 V

Ignition switch ON

Battery voltage

69

(W/B)

Ground ECM relay control

Output

Ignition switch OFF
(For a few seconds after turning ignition 
switch OFF)

Battery voltage

• Ignition switch ON
• Ignition switch OFF

(More than a few seconds after turn-
ing ignition switch OFF)

0 - 1.5 V

70

(O)

Ground

Throttle control motor re-
lay control

Output

Ignition switch ON 

→ OFF

0 -1.0 V 

Battery voltage

0 V

Ignition switch ON

0 - 1.0 V

72

(R/B)

Ground

Transmission range switch 
signal

Input

Ignition 
switch ON

CVT selector lever in P or 
N position

Battery voltage

CVT selector lever in any 
position other than P or N 
position

0 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

SEC-124

< ECU DIAGNOSIS INFORMATION >

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

75

(LG)

Ground Oil pressure switch

Input

Ignition 
switch ON

Engine stopped

0 V

Engine running

Battery voltage

76

(SB)

Ground

Power generation com-
mand signal

Output

Ignition switch ON

6.3 V

40% is set on “Active test”, “ALTERNA-
TOR DUTY” of “ENGINE”

3.8 V

80% is set on “Active test”, “ALTERNA-
TOR DUTY” of “ENGINE”

1.4 V

77

(GR)

Ground Fuel pump relay control

Output

• Approximately 1 second after turning 

the ignition switch ON

• Engine running

0 - 1.0 V

Approximately 1 second or more after 
turning the ignition switch ON

Battery voltage

80

(B)

Ground Starter motor 

Output

At engine cranking

Battery voltage

83

(R/Y)

Ground Headlamp LO (RH)

Output

Ignition 
switch ON

Lighting switch OFF

0 V

Lighting switch 2ND

Battery voltage

84

(L)

Ground Headlamp LO (LH)

Output

Ignition 
switch ON

Lighting switch OFF

0 V

Lighting switch 2ND

Battery voltage

86

(W/R)

Ground Front fog lamp (RH)

Output

Lighting 
switch 
2ND

• Front fog lamp switch 

ON

• Daytime running light 

activated (Only for Can-
ada models)

Battery voltage

Front fog lamp switch OFF 0 V

87

(L/Y)

Ground Front fog lamp (LH)

Output

Lighting 
switch 
2ND

• Front fog lamp switch 

ON

• Daytime running light 

activated (Only for Can-
ada models)

Battery voltage

Front fog lamp switch OFF 0 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

JPMIA0001GB

JPMIA0002GB

JPMIA0003GB

 

 

 

 

 

 

 

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